* {
    margin: 0;
    padding: 0;
}

body {
    background-color: rgb(233, 233, 233);

}

.sjzd {
    font-size: 14px;
    height: 20px;
    margin-top: 20px;
    margin-left: 162px;
}
.dhlz{
    color: black;
}


#diYi1 {
    background-color: white;
    width: 1000px;
    height: 600px;
    /* border: 1px solid black; */
    border-radius: 0 8px 8px 8px;
    margin: 0 auto;
    /* margin-top: 15px; */
}

#diYi2 {
    background-color: white;
    width: 1000px;
    height: 600px;
    border-radius: 0 8px 8px 8px;
    margin: 0 auto;
    display: none;
}

#xzt {
    margin-left: 162px;
    margin-top: 15px;
    width: 240px;
}

#zyfs {
    width: 180px;
    margin-left: 40px;
    margin-top: 40px;
}

#bg3 {
    width: 960px;
    /* border: 1px solid black; */
    margin: 0 auto;
    top: 40px;
    position: relative;

}

#nav2 {
    margin-top: -75px;
    margin-left: 600px;
}

#nav3 {
    margin-top: -75px;
    margin-left: 600px;
    display: none;
}

#bj2 {
    font-size: 12px;

}